SG Iron (Ductile Iron) Casting in Pakistan
Lahore Casting pours SG Iron (Ductile Iron) (400/18, 500/7, 600/3) to order at Mominpura Road, Lahore, Pakistan, by sand casting from 1 kg to 500 kg. Cast iron in which the graphite is formed into spheres rather than flakes, so it bends before it breaks. It has most of grey iron's castability with a large fraction of steel's toughness. Every heat is checked on an OES spectrometer before pouring and a material test certificate is issued on request.
Grades and properties
| Grades poured | 400/18, 500/7, 600/3 |
|---|---|
| Grade meaning | 500/7 means 500 MPa tensile, 7% elongation |
| Tensile strength | 400-600 MPa depending on grade |
| Elongation | 3-18% - grey iron gives essentially none |
| Treatment | Magnesium treated in the ladle, checked on the spectrometer every heat |
When to choose it
Use SG Iron when: A part that would crack in grey iron: housings under pressure, hubs, brackets, pipe fittings, anything that takes a shock.
Choose something else when: Damping matters more than toughness - a machine bed or a pulley is better in grey iron.
Castings poured in SG Iron
24 of the 40 standard castings are available in SG Iron. Any of them can also be poured to your own drawing.
- Centrifugal Pump Casing (Volute Casing) — Pump, Water Works & Fluid Handling, 8-250 kg
- Pump Impeller (Open / Semi-Open / Closed) — Pump, Water Works & Fluid Handling, 2-120 kg
- Pump Back Plate / Casing Cover — Pump, Water Works & Fluid Handling, 4-160 kg
- Wear Ring (Pump) — Pump, Water Works & Fluid Handling, 1-20 kg
- Bearing Housing (Pump / Process Equipment) — Pump, Water Works & Fluid Handling, 5-120 kg
- Stuffing Box / Gland Housing — Pump, Water Works & Fluid Handling, 3-60 kg
- Check Valve Body (Swing / Dual Plate) — Valve, Pipeline & Industrial Fittings, 8-450 kg
- Butterfly Valve Body (Lug / Wafer) — Valve, Pipeline & Industrial Fittings, 5-350 kg
- Y-Strainer Body — Valve, Pipeline & Industrial Fittings, 10-250 kg
- Reducer Casting (Eccentric / Concentric) — Valve, Pipeline & Industrial Fittings, 8-200 kg
- Gearbox Housing (Split / Single Body) — Gearbox, Transmission & Machine Housing, 25-500 kg
- Gearbox End Cover — Gearbox, Transmission & Machine Housing, 5-180 kg
- Plummer Block / Pillow Block Housing — Gearbox, Transmission & Machine Housing, 4-140 kg
- Pulley Wheel (V-Belt / Flat Belt) — Gearbox, Transmission & Machine Housing, 2-200 kg
- Rigid Flange Coupling Half — Gearbox, Transmission & Machine Housing, 2-160 kg
- Flywheel Casting — Gearbox, Transmission & Machine Housing, 20-500 kg
- Kiln / Conveyor Support Brackets & Bases — Cement Plant & Heavy Industrial Parts, 40-500 kg
- Conveyor Pulley Hub / Drum End Disc — Cement Plant & Heavy Industrial Parts, 10-220 kg
- Sugar Mill Coupling / Spacer — Sugar Mill, Rice Mill & General Industrial Replacement, 15-300 kg
- Sugar Mill Bearing Housing — Sugar Mill, Rice Mill & General Industrial Replacement, 30-500 kg
- Rice Mill / Textile Machine Housings — Sugar Mill, Rice Mill & General Industrial Replacement, 10-300 kg
- Tractor Hitch Bracket / Linkage Arm Casting — Agricultural & Tractor Implement, 8-80 kg
- Cultivator / Rotavator Blade Holder (Heavy Duty) — Agricultural & Tractor Implement, 3-30 kg
- Lifting Lug / Eye Plate Casting — General Machine Parts, 2-80 kg
Get a quote
Send a drawing (DWG, DXF, STEP, IGES or PDF) or a sample part. Standard lead time is 3-7 working days and there is no minimum order quantity.
Other alloys poured here
- Alloy Steel — AISI 4140, 4340, 8620
- Grey Cast Iron — FG200, FG260, FG300
- Manganese Steel (Hadfield) — Mn13, Mn18
- High Chrome Iron — 15% Cr, 25% Cr
- Stainless Steel — 304, 316, CF8M
- Carbon Steel — AISI 1045, 1050
- Mild Steel — AISI 1020, 1025